Silicon Quantum Computing

say their silicon-based, atomic quantum computing chips give them an advantage over other kinds of quantum processing units (QPUs). This is because the chips are based on a new architecture, called "14/15," that places phosphorus atoms in silicon

According to SQC this architecture is easily scalable with the fidelity rates, which measure how well the error-correction and mitigation techniques for the quantum chip are working, peak performance achieved during testing across multiple culsters. This could/can serve as a proof-of-concept for what could lead to fault-tolerant QPUs with millions of functional qubits.

SQC achieved fidelity rates between 99.5% to 99.99% in a quantum computer with nine nuclear qubits and two atomic qubits, resulting in the world’s first demonstration of atomic, silicon-based quantum computing across separate clusters.

For those who may not know a qubits are the quantum equivalent of a classical computer bit

Qubits come in numerous forms. Google and IBM scientists are building systems with superconducting qubits that use gated circuits, while some labs, such as PsiQuantum, have developed photonic qubits — qubits that are particles of light. Others, including IonQ, are working with trapped ions — capturing single atoms and holding them in a device referred to as laser tweezers.